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What is an anorthite?
An anorthite is a form of feldspar which is abundant in moon rocks, but very rare on Earth.
Which ferromagnesian minerals and which of the feldspar's would be the first minerals to crystallize?
olivine and anorthite
What is the hardness of chrome diopside?
Chlorine, like any other chemical substance, has no hardness unless it is in its solid state. Even then, a temperature would have to be specified for a meaningful answer.
Feldspar and quartz are examples of what minerals?
The group of minerals in Feldspar contain framework tectosilicates. The compositions of the major elements in the usual feldspars can be identified by three endmembers: Potassium-Feldspar, Albite, and Anorthite.
Last mineral to crystalize cooling magma?
The most common igneous rock forming minerals (i.e. those which crystallize from magma) include:QuartzPotassium FeldsparPlagioclase Feldspars (ranging from sodium to calcium rich, known as Albite and Anorthite respectively).BiotiteHornblendePyroxeneOlivinePlease see the related link.
What is chrome diopside quartz?
chrome diopside and quartz are two different gemstones. Chrome diopside is sometime found along with quartz and hence the name.
What is an anorthite?
An anorthite is a form of feldspar which is abundant in moon rocks, but very rare on Earth.
Where does chrome diopside come from?
Most reports of chrome diopside are found in Libby, Montana. Though there have been reports of finding these kinds of diopside in Canada, South Africa, Russia and Brazil.
How rare is diopside?
Rarity is relative, and debateable. I think it's safe to say that diopside is not considered to be a rare mineral, though large, transparent green well-formed crystals of diopside are indeed rare, as are fine, large and clean faceted stones.
Where does violane diopside come from?
"Violane", the manganese rich violet to blue variety of diopside, is quite uncommon, found in Italy, Greece, and California, according to mindat.org.
Does anorthite float or sink?
This is ROCK so it will SINK
Which modern day gemstone owes its colour to chromium?
chrome diopside
What is the most calcium-rich variety of plagioclase feldspar called?
Anorthite
Which gemstone gets its color from chromium?
Examples: ruby, emerald, diopside, tourmaline.
Which ferromagnesian minerals and which of the feldspar's would be the first minerals to crystallize?
olivine and anorthite
Essential minerals of rock basalt?
anorthite-rich plagioclase, feldspar and augite
What are gems and minerals in the birthstone for January?
Garnet, Almandine, Grossular, Andradite, Uvarovite, Diopside, Melanite, and Spessartine.
